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52280331 = 328162017
BaseRepresentation
bin1100011101101…
…1110000001011
310122101010010120
43013123300023
5101340432311
65104314323
71203242535
oct307336013
9118333116
1052280331
1127568a94
12156129a3
13aaa630c
146d2c855
1548ca706
hex31dbc0b

52280331 has 8 divisors (see below), whose sum is σ = 69956304. Its totient is φ = 34728960.

The previous prime is 52280323. The next prime is 52280341. The reversal of 52280331 is 13308225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52280331 - 23 = 52280323 is a prime.

It is a super-2 number, since 2×522803312 = 5466466018939122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52280341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30166 + ... + 31851.

It is an arithmetic number, because the mean of its divisors is an integer number (8744538).

Almost surely, 252280331 is an apocalyptic number.

52280331 is a deficient number, since it is larger than the sum of its proper divisors (17675973).

52280331 is a wasteful number, since it uses less digits than its factorization.

52280331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62301.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 52280331 is about 7230.5138821525. The cubic root of 52280331 is about 373.9206438436.

Adding to 52280331 its reverse (13308225), we get a palindrome (65588556).

The spelling of 52280331 in words is "fifty-two million, two hundred eighty thousand, three hundred thirty-one".

Divisors: 1 3 281 843 62017 186051 17426777 52280331